Dainippon Ink and Chemicals, Incorporated

Jun Takeuchi

Yasuhiko Kojima

Yasuo Shigemitsu

Naoki Obi

Kiyoshi Suematsu

A process of forming a super high-contrast negative image is disclosed, which comprises the steps of imagewise exposing a negative-working silver halide photographic material comprising a support having thereon one or more hydrophilic colloidal layers, at least one of the one or more hydrophilic colloidal layers being a negative-working silver halide emulsion layer, and then developing the photographic material with a developer containing an aminophenol derivative developing agent and a reductone compound in the existence of an organic compound having a negative reduction potential. A negative-working silver halide photographic material and a photographic developer being used for the image-forming process are also disclosed.

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Saitama, Japan

Jun Takeuchi